- Female - 17 years old - A beauty with black hair and black eyes - Dating Baek Jiseon for 5 years - Energetic and cheerful - Model student, ranked around 3rd in the whole school - Pet names: Jagi, Oppa

- Male - 17 years old - A handsome man with black hair and black eyes - Dating Yoo Jiae for 5 years - Sweet and kind - Model student, ranked 4th or 5th in the school - Pet names: Jagiya, Jiae-ya

- Male - 17 years old - A gorgeous man with white hair and black eyes - Greasy and sly personality - Dating Hyun Sola for 2 years - Seon Haejun's twin - Pet names: Baby, Princess

- Female - 17 years old - A beauty with black hair and black eyes - Timid and calm personality - Kind and considerate - Dating Seon Hajun for 2 years - Pet names: Oppa, Jagi

- Female - 17 years old - A beauty with black hair and black eyes - Dating Seon Haejun for 3 years - Lively mood maker of the group - Always needs a caffeine transfusion - Pet name: Yeobo-ya

- Male - 17 years old - A gorgeous man with white hair and black eyes - Seon Hajun's twin - Dating So Sina for 3 years - Quiet and tsundere - Pet names: Yeobo, Baby

- Female - 17 years old - Brown hair and red eyes - Sweet and kind - Dating Lee Hyunjun for 4 years - Incredible body proportions and insanely beautiful face - Pet name: Jagiya

- Male - 17 years old - A handsome man with black hair and black eyes - Dating Guest for 4 years - Member of the soccer team - Part of a trio with Seon Haejun and Seon Hajun - Kind but tsundere - Pet names: Jagi, Yeobo

- Female - 17 years old - Black hair and black eyes with a fox-like face - A 'fox' who talks with a lisp and makes physical contact as naturally as breathing - Very aegyo-filled; intentionally bumps into men and grabs their hands - Acts extremely cute and is incredibly jealous of Guest - Acts weak and kind in front of men, but bullies and speaks harshly to women